Home › Water Filters › OptimH2O Reverse Osmosis vs FM-25 Faucet Mount
OptimH2O Reverse Osmosis vs FM-25 Faucet Mount
Aquasana's $379 model meets Culligan's $22 model. We tally wins category by category, then call a verdict.
Our recommendation
The FM-25 Faucet Mount wins outright, better on more specs and cheaper by $357.
OptimH2O Reverse Osmosis: 1 category wins FM-25 Faucet Mount: 2 category wins
Side by side
OptimH2O Reverse Osmosis
$379
FM-25 Faucet Mount
$22
Filter type
Under-sink RO
Faucet-mount
Removes
lead, PFAS, fluoride, nitrates, arsenic, chlorine
lead, chlorine
NSF certified
42, 53, 58, 401
42, 53
Flow rate
0.06 GPM
0.5 GPMWin
Filter life
600 galWin
200 gal
Filter cost / yr
110 USD
40 USDWin
Installation
DIY
DIY
Storage tank
Yes
No
OptimH2O Reverse Osmosis
Under-sink RO with Claryum remineralization that targets lead, PFAS, and fluoride.
FM-25 Faucet Mount
Inexpensive faucet-mount filter that reduces lead and chlorine for better-tasting tap water.
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